David Gibson (PhD, University of Aberdeen) is minister of Trinity Church in Aberdeen, Scotland. He is a coeditor of From Heaven He Came and Sought Her, and his publications include Living Life Backward; Radically Whole; and The Lord of Psalm 23. He is married to Angela, and they have four children.

Jonathan Gibson (PhD, University of Cambridge) is an ordained minister in the International Presbyterian Church, United Kingdom, and associate professor of Old Testament at Westminster Theological Seminary in Philadelphia. He is a coeditor of and contributor to From Heaven He Came and Sought Her and author of Be Thou My Vision: A Liturgy for Daily Worship. Jonny and his wife, Jackie, have four children.

Michael Horton (PhD, University of Coventry and Wycliffe Hall, Oxford) is the J. Gresham Machen Professor of Systematic Theology and Apologetics at Westminster Seminary in California. In addition to being the author of many popular and academic books, he is also the editor in chief of Modern Reformation magazine, a host of the White Horse Inn radio broadcast, and a minister in the United Reformed Churches.

Michael A. G. Haykin (ThD, University of Toronto) is professor of church history and biblical spirituality at the Southern Baptist Theological Seminary and director of the Andrew Fuller Center for Baptist Studies. He has authored or edited more than twenty-five books, including Rediscovering the Church Fathers: Who They Were and How They Shaped the Church.

Garry Williams (DPhil, Oxford University) serves as the director of the John Owen Centre for Theological Study at London Theological Seminary in the United Kingdom, which provides theological teaching for pastors after their initial training. He is also a visiting professor of historical theology at Westminster Theological Seminary in Philadelphia, Pennsylvania. Garry and his wife, Fiona, have four children.

Douglas Sean O'Donnell (PhD, University of Aberdeen) is the senior vice president of Bible editorial at Crossway and is a member of the ESV Translation Oversight Committee and a Senior Fellow of the Center for Pastor Theologians. He has written over twenty books, including commentaries, Bible studies, devotionals, and a children's curriculum. In addition to his writing, he contributes editorially to several major commentary series, including Crossway's Commentary on the Greek New Testament, the Concise Bible Commentary, the Conversational Commentary, and the Reformed Exegetical Theological Commentary on Scripture. He is the general editor of the Knowing the Bible series and the liturgies and Scripture editor of the Sing! Hymnal.

David Wells (PhD, University of Manchester) is a distinguished research professor at Gordon-Conwell Theological Seminary. He is the author or editor of a number of books, some of which have been translated into many different languages. He is a member of the John Stott Ministries board, where he has worked to bring theological education to church leaders in developing countries. He is also actively involved in working to build orphanages and provide educational opportunities for victims of civil wars and AIDS in Africa. David and his wife, Jane, live in Massachusetts.

Lee Gatiss (PhD, University of Cambridge) is the director of Church Society and a fellow in church history and Anglicanism at the Greystone Theological Institute. He is also chairman of The Global Anglican and on the editorial board of Studies in Puritanism and Piety. He has written or edited more than thirty books on the Bible, theology, and church history. He and his family serve at Christ Church, Cambridge in the United Kingdom.

James N. Anderson (PhD, University of Edinburgh) is Carl W. McMurray Professor of Theology and Philosophy at Reformed Theological Seminary in Charlotte, North Carolina, and an ordained minister in the Associate Reformed Presbyterian Church. Anderson is a member of the Society of Christian Philosophers, the British Society for the Philosophy of Religion, and the Evangelical Philosophical Society.

Bradley G. Green (PhD, Baylor University) is professor of theological studies at Union University, visiting professor of philosophy and theology at The Southern Baptist Theological Seminary, and cofounder of Augustine School, a Christian liberal arts school in Jackson, Tennessee. He has written numerous journal articles and reviews.

Mark D. Thompson (DPhil, University of Oxford) is the principal of Moore Theological College in Sydney, Australia, where he has been teaching Christian doctrine for thirty years. He is the chair of the Sydney Diocesan Doctrine Commission and a member of the GAFCON Theological Resource Group. He is the author of A Clear and Present Word. Mark is married to Kathryn, and they have four daughters.

Raymond A. Blacketer (PhD, Calvin Theological Seminary) has written several articles on Calvin and later Reformed theology and is a contributor to From Heaven He Came and Sought Her and Ruined Sinners to Reclaim. Blacketer is a scholar of the Reformation and an ordained pastor who has served congregations in Alberta, Canada, and West Michigan. He has also taught classes at both Fuller Theological Seminary and Western Theological Seminary.

Murray J. Smith (PhD, Macquarie University) is lecturer in biblical theology and exegesis at Christ College, Sydney. He is the author of several books and articles. Murray serves as general editor for New Testament of the Reformed Exegetical and Theological Commentary on Scripture, as coeditor of the series We Believe: Studies in Reformed Biblical Doctrine, and as cohost of the Down Under Theology podcast.

Ryan M. McGraw (PhD, University of the Free State) is professor of systematic theology at Greenville Presbyterian Theological Seminary and has pastored in several churches. He has written nearly thirty books, focusing on weaving the Trinity into doctrine and life.

Stephen M. Coleman (PhD, The Catholic University of America) is an ordained teaching elder in the Presbyterian Church in America. He holds the Stephen Tong Chair of Reformed Theology at Westminster Theological Seminary in Philadelphia, where he also serves as the dean of biblical and theological studies and as associate professor of Old Testament and biblical languages. He is the editor in chief of Unio cum Christo: International Journal of Reformed Theology and Life and coeditor of the Westminster Theological Journal.

N. Gray Sutanto (PhD, University of Edinburgh) is assistant professor of systematic theology at Reformed Theological Seminary, Washington, DC. He is the author of God and Knowledge: Herman Bavinck's Theological Epistemology, and a cotranslator and coeditor of Herman Bavinck's Christian Worldview.

Mark Jones (PhD, Leiden Universiteit) serves as the pastor of Faith Vancouver Presbyterian Church (PCA) in British Columbia, Canada. He has authored many books, including Living for God and God Is, and speaks all over the world on Christology and the Christian life. Mark and his wife, Barbara, have four children.

Andrew M. Leslie (PhD, University of Edinburgh) is head of theology, philosophy, and ethics at Moore Theological College in Sydney, Australia. He is also a lecturer in Christian doctrine and has served in the parishes of North Sydney and Strathfield.

Heath Lambert (PhD, The Southern Baptist Theological Seminary) is senior pastor at First Baptist Church of Jacksonville, Florida, is a founding council board member of the Biblical Counseling Coalition, and sits on the review board for The Journal of Biblical Manhood and Womanhood. He previously served as executive director of the Association of Certified Biblical Counselors and as associate professor of biblical counseling at Boyce College of the Southern Baptist Theological Seminary.